TRANSFORMER SPEED
CONTROLLER
RSA5D-..-T SERIES
CONTENTS
1 PURPOSE ......................................................................................................3
2 PACKAGE CONTENTS ...............................................................................3
3 TECHNICAL SPECIFICATIONS ................................................................4
4 DESIGN AND OPERATING PRINCIPLE .................................................4
5 SAFETY PRECAUTIONS AND WARNINGS ..........................................5
6 INSTALLATION AND SETUP ....................................................................6
7 TECHNICAL MAINTENANCE ..................................................................8
8 TRANSPORTATION ....................................................................................8
9 WARRANTY ..................................................................................................8
10 WARRANTY CARD .....................................................................................9
2
3 4
5 6
PURPOSE
The RSA5D-..T series controllers (hereinafter “Device”) are used to control the output of three-
phase fans by step changing of the supplied voltage.
The controller has ve speed settings which correspond to ve xed positions of the rotating knob
on the front panel.
PACKAGE CONTENTS
Automatic transformer 1 piece
User’s Operation Manual 1 piece
Packing 1 piece
TECHNICAL SPECIFICATIONS
Supply Voltage: 400 V/50 Hz
Fan Motor Nominal Voltage: 400 V/50 Hz
Lead-In: screw terminal block 0.5 ... 4.0 mm2
Operating Ambient Temperature: +5°C..+40 °C
Protection Class: IP44
DESIGN AND OPERATING PRINCIPLE
The device is a three-phase transformer enclosed in an ABS plastic casing. The device front panel
(see Fig. 1) features speed selector 1, signal lamp 2 which indicates normal operation of the control-
ler, and signal lamp 3 which corresponds to controller operation in the emergency mode.
The controller has ve speeds selectable by means of rotating knob 1 to one of the ve xed
positions or “O” (O). The controller is equipped with TK terminals (see Fig. 4) for connection of the
thermal contact built into the fan motor. When actuated the thermal contact cuts voltage supply to
the fan motor and switches on signal lamp 3 which indicates controller operation in the emergency
mode. The controller also has terminals L1,N (230VAC/Max. 2A) for connection of external equipment
(e.g. air damper actuators). Setting the controller knob to “О” cuts the voltage supply to the fan mo-
tor.
Fuse 6 (see Fig. З) prevents the device and the connected fan from excessive current consump-
tion.
The controller application range is limited by the fan electric motor characteristics. The fan elec-
tric motor must be designed for voltage regulation by means of a transformer.
The speed controller and its connected equipment may present an electric shock hazard. There-
fore, the device shall be connected and operated only by adequately qualied sta familiar with
this manual. The speed controller belongs to electrical machinery with voltages up to 1,000 V.
The device must be disconnected from the power mains for any and all operations with the de-
vice internals.
The speed controller shall only be used with single-phase motors. The total current consumption
of the electrical appliances connected to the device shall not exceed the limit value (see Techni-
cal specications). The speed controller must be properly earthed.
Use the device with due caution. Do not subject it to shocks and overloads or expose it to liquids
and dirt. Should any foreign objects penetrate onto the controller circuit board, disconnect the
unit from the mains and remove them.
Do not apply overvoltage to any of the speed controllers parts while testing the device (e.g.
with a megohmmeter etc.). Disconnect the cable from the speed controller prior to any measure-
ments on the cable or motor!
DO NOT:
Operate the device in the presence of smoke or smell commonly associated with burning insula-
tion, elevated noise or vibration, in case of structural integrity loss or formation of cracks in the
casing or with broken connectors;
Cover the device with any materials, mount any gauges and objects on top, block the vents or
ll them with any foreign objects; do not use the device in areas with an explosive or chemically
aggressive environment detrimental to metals and insulation or under the inuence of droplets
or spray; do not use outdoors;
Connect any electric motors (individual or part of any equipment) with the phase current con-
sumption (usually stated on the nameplate) in excess of the limit phase load current for the de-
vice;
Connect the device output terminals to the power mains.
INSTALLATION AND SETUP
Check the device visually for any damage to the casing;
Remove the front panel by unscrewing self-tapping screws 7 (see Fig. 2);
Fasten the controller to the mounting surface using mounting holes 8 (see Fig. 2) in the rear wall
of the unit;
Complete the electrical connections according to the wiring diagram (see Fig. 4). The external
wires are connected to the device by means of bolt-and-nut terminals 5 (see Fig 3). The cables are
routed into the unit through sealed lead-ins 4 (see Fig.3). The external lead-in (220V/50Hz) must
be equipped with an automatic switch built into the stationary wiring. Supply the power voltage
and start the device.
ATTENTION! Following the device transportation or storage under temperatures below
zero let the unit warm up in the specified operating conditions for at least 4 hours.
SAFETY PRECAUTIONS AND WARNINGS
Switch Position
Output Voltage,
VАС
0 0
1 90
2 150
3 200
4 280
5 400
ATTENTION!
MOUNT THE DEVICE VERTICALLY
FOR PROPER OPERATION
Designation RSA5D-1.5-T RSA5D-3.5-T
Max. Load Current (A) 1.5 3.5
Fuse (A) 1.5 3.5
Dimensions (mm) 305x200x180 305x200x180
Weight (kg)
Fig. 1
7 8
10
11
Fig. 4. Connection Diagram
TECHNICAL MAINTENANCE
Periodically clean dust, bres and other contamination from the ventilation holes.
Make sure the external wires are tightly connected to the screw terminals of the devi
TRANSPORTATION
The device shall be carried in the manufacturer’s packing without limitation to the means of trans-
port, distance or speed. Once received by the user the devices shall be stored in the original packing
at temperatures ranging from -40 to +35 °C and relative humidity up to 80%. The storage premises
shall be free from dust and corrosive acid or alkaline vapours.
WARRANTY
The manufacturer warrants trouble-free operation of the speed controller over the period of 12
months from the sale date within the warranty storage period. The warranty storage period is 24
months from the manufacturing date. If the sale date and vendor’s stamp are missing, the warranty
period shall be calculated from the manufacturing date. The customer shall be entitled to free repair
of the device in case of any malfunction of the controller occurring through the manufacturer’s fault
within the warranty period.
ATTENTION! The manufacturer shall not be liable for any injuries or damage caused by
non-compliance with the installation and operation regulations set forth herein.
ATTENTION! Check the controller certicate of sale and acceptance for completeness (the
required information includes the manufacturing and sale dates, manufacturer’s and ven-
dor’s stamps).
TRANSFORMER SPEED
CONTROLLERS FRSA5D..T SERIES
Fig. 2 Fig. 3
NOTES
NOTES
9
WARRANTY SERVICE IS DENIED IN THE FOLLOWING CASES:
Violation of the storage, transportation, installation and operation rules set forth herein;
Failure to present the original certicate of sale and acceptance providing evidence of sale;
Missing warranty card;
Device repair by unauthorized persons and entities;
Mechanical damage, traces of chemicals and penetration of foreign objects;
Damage caused by force majeure consequences (e.g. re, lightning strike, ood, accident etc.);
Misuse of the device;
Connection to the power mains non-compliant with the required parameters specied in p.3 of
the Operation Manual;
Connection of loads with current consumption in excess of the maximum permissible current as
specied in p.3 of the Operation Manual.
Warranty Card
Acceptance Inspector’s Stamp Manufacturing Date
Shipment Date
FULL NAME
Date Signature
Notes
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1
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2
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